Wielki Staw
Encyclopedia
Wielki Staw - post glacial natural lake in the Krkonoše mountains, in western Poland
Poland
Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

. It is situated in the Karkonosze National Park
Karkonosze National Park
The Karkonosze National Park is a National Park in the Karkonosze Mountains in southwestern Poland.The park is located in Lower Silesian Voivodeship, along the border with the Czech Republic. It was created in 1959 to cover an area of 55.10 km²; today it is slightly larger at , of which 17.18 km²...

 at the bottom of the cirque
Cirque
Cirque may refer to:* Cirque, a geological formation* Makhtesh, an erosional landform found in the Negev desert of Israel and Sinai of Egypt*Cirque , an album by Biosphere* Cirque Corporation, a company that makes touchpads...

, on the southern slope of the Smogornia
Smogornia
Smogornia - peak in the Karkonosze Mountains on Polish and Czech border. It is situated in the eastern part of the main range. The peak is not accessible; the main Sudetes trail and Polish - Czech Friendship Trail traverses the mountain ca 300 m north from the peak...

 mountain.

With its area of 8.3 hectares, it is the biggest glacial lake in the whole range. Its depth reaches 25 m, the sjores are covered in subalpine species. Waters of the lake host rare species, some of them even extinct like Isoetes lacustris
Isoetes lacustris
Isoetes lacustris is a boreal quillwort native on both sides of the northern Atlantic Ocean. In Europe, it is distributed from Poland west to northeastern France, throughout Scandinavia, the west and north of the British Isles, the Faroe Islands and Iceland...

. Due to the regulations of a nature reserve, the object is closed and can be watched only from the top of the cirque. The place is accessible from the Polish–Czech Friendship Trail (red marks).
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